Which of the following did you include in your answer? Check all that apply. weakened pathogen introduced to the body white blood cells form antibodies against the pathogen memory cells remember the pathogen

Which of the following did you include in your answer? Check all that apply. weakened pathogen introduced to the body white blood cells form antibodies against the pathogen memory cells remember the pathogen and attack it if it enters the body again vaccinations help the body build immunity

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